I believe it is C. Try and think about where you would naturally pause, you wouldn't say "Tourists in Mexico *pause* enjoy eating the rich, delicious food."
Answer:
number four
Explanation:
I don't really know how to put the explanation well (I need help on that) but number 5 is supposed to come before number 4
We had hoped they had sent us an invitation too.
I think your answer will be C.
A. Brass That´s your answer.